[ZH-CN] Translate save-data.md into Chinese

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See review request on GitLocalize

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[ilyaspiridonov]

@agektmr Translation reviewed
@jinziyi Thank you for the translation and sorry this is taking so long to review.

[ilyaspiridonov]

Fixed page-title for webfunbot

[WebFundBot]

Whoops!

There were 1 critical errors that broke the build and prevented it from being automatically deployed.

There were 14 warnings that will prevent this PR from being merged. Please take a look, and either fix, or provide a justification for why they can't be fixed.

ERRORS
src/content/zh-cn/fundamentals/performance/optimizing-content-efficiency/save-data/index.md#L9 - Cannot find contributor (ilyagrigorik.html" %} {% include "web/_shared/contributors/dgash.html" %} {% include "web/_shared/contributors/jeremywagner) in contributors file.

WARNINGS
src/content/zh-cn/fundamentals/performance/optimizing-content-efficiency/save-data/index.md#L211 - Consider adding a "was this page helpful?" widget to your page: https://developers.google.com/web/resources/widgets#helpful
src/content/zh-cn/fundamentals/performance/optimizing-content-efficiency/save-data/index.md#L45 - Common typo found: 'javascript' Should it be 'JavaScript'?
src/content/zh-cn/fundamentals/performance/optimizing-content-efficiency/save-data/index.md#L43 - Common typo found: '：' Should it be ':'? This is a unicode full-width colon, please use normal colons.
src/content/zh-cn/fundamentals/performance/optimizing-content-efficiency/save-data/index.md#L68 - Common typo found: '：' Should it be ':'? This is a unicode full-width colon, please use normal colons.
src/content/zh-cn/fundamentals/performance/optimizing-content-efficiency/save-data/index.md#L72 - Common typo found: '：' Should it be ':'? This is a unicode full-width colon, please use normal colons.
src/content/zh-cn/fundamentals/performance/optimizing-content-efficiency/save-data/index.md#L89 - Common typo found: '：' Should it be ':'? This is a unicode full-width colon, please use normal colons.
src/content/zh-cn/fundamentals/performance/optimizing-content-efficiency/save-data/index.md#L106 - Common typo found: '：' Should it be ':'? This is a unicode full-width colon, please use normal colons.
src/content/zh-cn/fundamentals/performance/optimizing-content-efficiency/save-data/index.md#L106 - Common typo found: '：' Should it be ':'? This is a unicode full-width colon, please use normal colons.
src/content/zh-cn/fundamentals/performance/optimizing-content-efficiency/save-data/index.md#L121 - Common typo found: '：' Should it be ':'? This is a unicode full-width colon, please use normal colons.
src/content/zh-cn/fundamentals/performance/optimizing-content-efficiency/save-data/index.md#L131 - Common typo found: '：' Should it be ':'? This is a unicode full-width colon, please use normal colons.
src/content/zh-cn/fundamentals/performance/optimizing-content-efficiency/save-data/index.md#L142 - Common typo found: '：' Should it be ':'? This is a unicode full-width colon, please use normal colons.
src/content/zh-cn/fundamentals/performance/optimizing-content-efficiency/save-data/index.md#L159 - Common typo found: '：' Should it be ':'? This is a unicode full-width colon, please use normal colons.
src/content/zh-cn/fundamentals/performance/optimizing-content-efficiency/save-data/index.md#L185 - Common typo found: '：' Should it be ':'? This is a unicode full-width colon, please use normal colons.
src/content/zh-cn/fundamentals/performance/optimizing-content-efficiency/save-data/index.md#L199 - Common typo found: '：' Should it be ':'? This is a unicode full-width colon, please use normal colons.

[jinziyi]

@googlebot I consent.

[agektmr]

@liangzdz I need your consent on CLA.

[petele]

1. Incorrect line breaks for {# wf_* #} metadata.
2. Images and links should not be changed to GitHub URLs but should remain as originally provided.